CN214380359U - Motor rotor structure - Google Patents

Abstract

The utility model relates to an electric motor rotor structure. The problem of among the prior art rotor structure unreasonable, the assembly is troublesome, influence production efficiency is solved. The rotor structure comprises a rotor shaft and a magnetic ring and further comprises a switching seat, a shaft hole is formed in the switching seat, the rotor shaft penetrates into the shaft hole and is fixed in the shaft hole, the switching seat is arranged in an inner ring of the magnetic ring, and an elastic connecting ring is arranged between the switching seat and the magnetic ring and is fixedly connected with the magnetic ring. Carry out fixed connection through the elastic connection ring between magnetic ring and the adapter, have the block structure between this elastic component and magnetic ring, the adapter and cooperate, prevent to take place relative movement each other after the cooperation is connected for connect more firmly. The manufacturing process is simple, the production efficiency of the rotor is improved, materials are saved, and the cost is reduced.

Description

Motor rotor structure

Technical Field

The utility model relates to the technical field of electric machines, especially, relate to an electric motor rotor structure.

Background

The traditional motor rotor structure comprises a magnetic ring, an adapter and a rotating shaft connected to the adapter, wherein the adapter is connected with the magnetic ring through a fastening structure or a fastening piece, but the structure needs to be assembled, the manufacturing process is more, the operation is troublesome, and the production efficiency of the rotor is influenced.

Disclosure of Invention

The utility model discloses it is unreasonable mainly to have solved prior art mesotrochanter structure, and the assembly is troublesome, influences production efficiency's problem, provides an electric motor rotor structure.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a motor rotor structure, includes rotor shaft and magnetic ring, still includes the adapter, is provided with the shaft hole on the adapter, the rotor shaft penetrates and fixes in the shaft hole, the adapter sets up in the inner circle of magnetic ring, is provided with elastic connection ring looks fixed connection between adapter and the magnetic ring. The utility model discloses carry out fixed connection through the elastic connection ring between magnetic ring and adapter, have the block structure between this elastic connection ring and magnetic ring, the adapter and cooperate, prevent to take place relative movement each other after the cooperation is connected for it is more firm to connect. The elastic connecting ring is formed between the magnetic ring and the adapter by injection molding, the elastic connecting ring is more tightly connected with the magnetic ring and the adapter, and the whole structure is more stable. Adopt to mould plastics and form elastic connecting ring and connect magnetic ring and adapter, compare the rotor structure that a plurality of part equipment formed, the utility model discloses rotor preparation simple process need not to assemble in addition, has improved rotor production efficiency. The elastic connecting ring is adopted to ensure the integral strength of the rotor, and simultaneously, the material is saved and the cost is reduced.

As a preferred scheme of the above scheme, a plurality of first clamping head portions are arranged on the outer ring surface of the elastic connection ring, a plurality of first clamping portions are correspondingly arranged on the inner ring of the magnetic ring, the first clamping head portions are tightly clamped in the first clamping portions in a matching manner, a plurality of second clamping head portions are arranged on the inner ring surface of the elastic connection ring, a plurality of second clamping portions are correspondingly arranged on the outer ring surface of the adapter, and the first clamping head portions are tightly clamped in the first clamping portions in a matching manner. The elastic piece is matched and fixed with the magnetic ring and the adapter through the clamping structure, and the plurality of clamping head parts and the plurality of clamping parts are arranged, so that the elastic piece is connected with the magnetic ring and the adapter more tightly. The clamping head part is matched with the clamping part in shape, the clamping head part is tightly attached to the clamping part, and the elastic part is connected with the magnetic ring and the adapter into a whole.

As a preferable scheme of the above scheme, the first clamping head portion on the elastic connection ring includes a plurality of clamping heads, the clamping heads are disposed on the outer ring surface of the elastic connection ring and are uniformly distributed along the edges of the two sides, the first clamping head portion on the magnetic ring includes a plurality of clamping grooves, the clamping grooves are disposed on the inner ring surface of the magnetic ring and are uniformly distributed along the edges of the two sides, and the clamping heads are embedded in the clamping grooves after the magnetic ring is connected with the elastic connection ring in a matching manner. The clamping heads are uniformly distributed on the edges of two sides of the elastic connecting ring, the clamping grooves are uniformly distributed on the joint-measuring edges of the inner circle surface of the magnetic ring corresponding to the positions of the clamping heads, and the quantity and the shape of the clamping heads are consistent with those of the clamping grooves. The shape of dop is semicircle column, and wherein the side of semicircle is towards the magnetic ring, and the draw-in groove is corresponding semicircular groove body. Of course, the shape of the chuck can also be square, trapezoid or other shapes.

As a preferable scheme of the above scheme, the first clamping head portion on the elastic connection ring includes a plurality of clamping strips, the clamping strips are transversely disposed and uniformly distributed on an outer ring surface of the elastic connection ring at intervals, two ends of the clamping strips are respectively flush with two side surfaces of the elastic connection ring, the second clamping portion on the magnetic ring includes a plurality of elongated slots, the elongated slots are transversely disposed and uniformly distributed on an inner ring surface of the magnetic ring at intervals, and the clamping strips are embedded in the elongated slots after the magnetic ring is connected with the elastic connection ring in a matched manner. In the scheme, the clamping strips are semicircular long strips, the clamping strips are arranged along the width direction of the outer ring surface of the elastic connecting ring, the clamping strips are uniformly arranged at intervals, and the long grooves are also semicircular long grooves. Of course, the shape of the clamping strip can also be a strip structure with a square shape, a trapezoid shape or other shapes. In the scheme, the contact area between the clamping strip and the long groove is larger, and the connection between the magnetic ring and the elastic connecting ring is firmer.

As an optimization scheme of above-mentioned scheme, first dop portion on the elastic connecting ring includes along the first card edge that elastic connecting ring outer lane face both sides border set up, transversely sets up and even interval connection has a plurality of first crossbands between first card edge, second joint portion on the magnetic ring includes along the first annular that magnetic ring inner lane face both sides border set up, transversely sets up its even interval connection and has a plurality of first crossbands between the annular, and the magnetic ring is connected the back card edge with the elastic connecting ring cooperation and is inlayed in the annular, and the crossbands is inlayed in the transverse groove. First dop portion plays horizontal limiting displacement including card edge and horizontal strip two parts in this scheme, card edge, prevents that the magnetic ring from moving on horizontal, and the horizontal strip plays limiting displacement on the periphery, and both cooperate and make between magnetic ring and the elastic connection ring cooperate more fastening, more difficult production relative slip.

As a preferable scheme of the above scheme, the second clamping head portion on the elastic connection ring includes second clamping edges arranged along two side edges of an inner ring surface of the elastic connection ring, and a plurality of second cross bars are transversely arranged between the second clamping edges and uniformly spaced.

As a preferable scheme of the above scheme, the adapter is a circular body, the second clamping portion includes a plurality of second transverse grooves transversely formed in an outer ring surface of the adapter, the adapter is embedded in a groove formed between two second clamping edges of the elastic connection ring, and the second transverse grooves are connected with the second transverse strips in a matching manner. The adapter is of a circular structure, a plurality of second transverse grooves corresponding to the second transverse strips are transversely formed in the outer ring face of the adapter, the width of the outer ring face of the adapter is the same as the width between the two second clamping edges, the size of the adapter is matched with the size of the inner ring of the elastic connecting ring, the adapter is embedded into the inner ring of the elastic connecting ring and embedded into the groove formed between the two second clamping edges, and the second transverse grooves are closely matched with the second transverse strips. The shaft hole sets up in the adapter center.

As an optimal scheme of above-mentioned scheme, the adapter includes fixed part and a plurality of radial support bar of connecting on the fixed part outer lane face, and second joint portion includes a plurality of horizontal third cross slots that set up on the support bar terminal surface, and the support bar front end supports the inslot that forms between two second card edges of elastic connection ring, and the third cross slot cooperatees with the second cross bar and is connected. The transfer connection seat adopts support bar and elastic connecting ring to be connected in this scheme, and this support bar is preferred four, forms cross with the fixed part is common, and this support bar can set up more certainly. The support bars are hollowed out, so that the cost is saved without reducing materials, and the weight is reduced.

As an optimal scheme of the scheme, the two sides of the front ends of the supporting bars extend to form extending parts, the end faces of the extending parts are tightly connected with the inner ring face of the elastic connecting ring, spacing parts are formed on the inner ring face of the elastic connecting ring between every two adjacent supporting bar extending parts in a protruding mode, the extending parts are connected with the supporting bars in a transition mode through fillets, and the two supporting bars are connected in a transition mode through fillets. The extension part is arranged in the scheme, so that the contact area between the end face of the support bar and the inner ring face of the elastic connecting ring is increased, and the support bar and the elastic connecting ring are connected more tightly. In addition, the spacing part is a protrusion between the two support bar extending parts, namely a groove is formed at the connecting part of the support bar and the inner ring surface of the elastic connecting ring, and the support bar and the extending parts are embedded in the groove, so that the support bar and the elastic connecting ring are connected more firmly and are not easy to move relatively. Through fillet transitional coupling between extension and the support bar, through fillet transitional coupling between two support bars, improved the intensity of support bar for connect more tightly.

As a preferable scheme of the above scheme, a plurality of mounting grooves are uniformly arranged on the side surface of the elastic connection ring along the circumference, and balancing pieces are embedded in the mounting grooves. The mounting grooves are uniformly distributed along the circumference, and balancing pieces are embedded in the mounting grooves and used for adjusting the overall weight and the weight distribution of the rotor.

The utility model has the advantages that:

1. carry out fixed connection through the elastic connection ring between magnetic ring and the adapter, have the block structure between this elastic component and magnetic ring, the adapter and cooperate, prevent to take place relative movement each other after the cooperation is connected for connect more firmly.

2. Adopt to mould plastics and form elastic connecting ring and connect magnetic ring and adapter, compare the rotor structure that a plurality of part equipment formed, the utility model discloses rotor preparation simple process need not to assemble in addition, has improved rotor production efficiency. The integral strength of the rotor is ensured, the material is saved, and the cost is reduced.

3. The adapter adopts the support bar to be connected with the elastic connecting ring, thereby not only reducing the material and saving the cost, but also lightening the weight.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of a first structure of the middle magnet ring of the present invention;

FIG. 3 is a schematic view of a first structure of the elastic connecting ring of the present invention;

fig. 4 is a schematic view of a second structure of the middle magnet ring of the present invention;

FIG. 5 is a schematic view of a second structure of the elastic connecting ring of the present invention;

fig. 6 is a schematic view of a third structure of the middle magnet ring of the present invention;

fig. 7 is a third structural view of the elastic connecting ring of the present invention;

fig. 8 is a first structural schematic view of the transfer base of the present invention;

fig. 9 is a second structural schematic view of the transfer base of the present invention;

fig. 10 is a schematic view of the connection structure of the adapter and the elastic connection ring according to the present invention.

1-a magnetic ring 2-an elastic connecting ring 3-an adapter 4-a shaft hole 5-a chuck 6-a clamping groove 7-a clamping strip 8-a long groove 9-a first clamping edge 10-a first transverse strip 11-a first annular groove 12-a first transverse groove 13-a second clamping edge 14-a second transverse strip 15-a second transverse groove 16-a fixed part 17-a support strip 18-a third transverse groove 19-an extending part 20-a spacing part 21-a mounting groove 22-a rotor shaft.

Detailed Description

The technical solution of the present invention is further described below by way of examples and with reference to the accompanying drawings.

Example 1:

the structure of the rotor of the motor in this embodiment, as shown in fig. 1, includes a rotor shaft 22, a magnetic ring 1 and an adapter 3, the adapter is provided with a shaft hole 4, the rotor shaft penetrates and is fixed in the shaft hole, the adapter is arranged in an inner ring of the magnetic ring, and an elastic connection ring 2 is arranged between the adapter and the magnetic ring for fixing connection. The elastic connecting ring is formed between the magnetic ring and the adapter by injection molding, the elastic connecting ring is more tightly connected with the magnetic ring and the adapter, and the whole structure is more stable. The elastic connecting ring formed by injection molding is used for connecting the magnetic ring and the adapter, and compared with a rotor structure formed by assembling a plurality of parts, the rotor manufacturing process is simple, additional assembling is not needed, and the production efficiency of the rotor is improved. The elastic connecting ring is adopted to ensure the integral strength of the rotor, and simultaneously, the material is saved and the cost is reduced.

The elastic connecting ring is matched with the magnetic ring and the adapter through clamping structures, and the elastic connecting ring, the magnetic ring and the adapter are prevented from moving relatively after being matched and connected. The clamping structure comprises a plurality of first clamping head portions arranged on the outer ring face of the elastic connecting ring 2, a plurality of first clamping portions are correspondingly arranged on the inner ring of the magnetic ring 1, the first clamping head portions are tightly matched and clamped in the first clamping portions, a plurality of second clamping head portions are arranged on the inner ring face of the elastic connecting ring, a plurality of second clamping portions are correspondingly arranged on the outer ring face of the adapter base 3, and the first clamping head portions are tightly matched and clamped in the first clamping portions. A plurality of mounting grooves 21 are uniformly arranged on the side surface of the elastic connecting ring 2 along the circumference, and balancing pieces are embedded in the mounting grooves. The mounting grooves are uniformly distributed along the circumference, and balancing pieces are embedded in the mounting grooves and used for adjusting the overall weight and the weight distribution of the rotor.

The specific structure, as shown in fig. 2 and 3, the first clamping head portion on the elastic connecting ring 2 comprises a plurality of clamping heads 5, the clamping heads are in a semicircular column shape, the side faces of the semicircular ring face towards the magnetic ring, the clamping heads are arranged on the outer ring face of the elastic connecting ring and are uniformly distributed along the edges of the two sides, the first clamping head portion on the magnetic ring 1 comprises a plurality of clamping grooves 6, the clamping grooves are corresponding semicircular groove bodies, the clamping grooves are arranged on the inner ring face of the magnetic ring and are uniformly distributed along the edges of the two sides, and the magnetic ring is connected with the elastic connecting ring in a matched mode and then the clamping heads are embedded in the clamping grooves. The second clamping head part on the elastic connecting ring 2 comprises second clamping edges 13 arranged along two side edges of the inner ring surface of the elastic connecting ring, and a plurality of second transverse strips 14 are transversely arranged between the second clamping edges and are uniformly arranged at intervals. As shown in fig. 8, the adapter 3 is a circular body, the width of the outer ring surface of the adapter is the same as the width between the two second flanges, the size of the adapter matches with the size of the inner ring of the elastic connection ring, the second clamping portion includes a plurality of second transverse grooves 15 transversely disposed on the outer ring surface of the adapter, the adapter is disposed in the inner ring of the elastic connection ring and embedded in the groove formed between the two second flanges 13 of the elastic connection ring 2, and the second transverse grooves are connected with the second transverse strips 14 in a matching manner.

Example 2:

in this embodiment, a second structure of the rotor structure of the motor is provided, which is different from that in embodiment 1 in a clamping structure, as shown in fig. 4 and 5, a first clamping head portion on the elastic connection ring 2 includes a plurality of clamping strips 7, the clamping strips are semicircular and long-strip-shaped, the clamping strips are transversely arranged and uniformly distributed on an outer ring surface of the elastic connection ring at intervals, two ends of each clamping strip are respectively flush with two side surfaces of the elastic connection ring, a second clamping head portion on the magnetic ring 1 includes a plurality of elongated slots 8, the elongated slots are transversely arranged and uniformly distributed on an inner ring surface of the magnetic ring at intervals, and the clamping strips are embedded in the elongated slots after the magnetic ring is connected with the elastic connection ring in a matching manner. In the implementation, the contact area between the clamping strip and the long groove is larger, and the connection between the magnetic ring and the elastic connecting ring is also firmer.

Example 3:

in this embodiment, a third structure of the rotor structure of the motor is provided, which is different from the embodiment 1 in the clamping structure, as shown in fig. 6 and 7, the first clamping portion on the elastic connection ring 2 includes first clamping edges 9 disposed along two side edges of the outer ring surface of the elastic connection ring, a plurality of first cross bars 10 are transversely disposed and uniformly connected between the first clamping edges at intervals, the second clamping portion on the magnetic ring 1 includes first ring grooves 11 disposed along two side edges of the inner ring surface of the magnetic ring, a plurality of first cross grooves 12 are transversely disposed between the ring grooves at intervals, the clamping edges are embedded in the ring grooves after the magnetic ring is connected with the elastic connection ring in a matching manner, and the first cross bars are embedded in the first cross grooves. This embodiment structure plays better limiting displacement to the magnetic ring, prevents that the magnetic ring from removing in horizontal for the cooperation is more fastened between magnetic ring and the elastic connection ring.

Example 4:

the present embodiment provides a third structure of the rotor structure of the motor, and the difference between the present embodiment and embodiment 1 lies in the structure of the adapter 3, as shown in fig. 9 and fig. 10, the adapter 3 includes a fixing portion 16 and a plurality of support bars 17 radially connected to the outer ring surface of the fixing portion, four support bars are preferred in the present embodiment, the support bars and the fixing portion form a cross shape together, and the support bars form hollows therebetween, which not only reduces the material and saves the cost, but also reduces the weight. The middle of the fixing part is provided with a shaft hole 4, and the rotor shaft penetrates and is fixed in the shaft hole. The second joint portion includes that a plurality of horizontal third cross slots 18 that set up on the support bar terminal surface, and the support bar front end supports in the inslot that forms between two second card edges 13 of elastic connection ring 2, and the third cross slot cooperatees with second horizontal bar 14 and is connected. Extension portions 19 are formed by extending two sides of the front end of each support bar 17, the end faces of the extension portions are tightly connected with the inner ring face of each elastic connecting ring, and spacing portions 20 are formed by protruding on the inner ring face of each elastic connecting ring between every two adjacent support bar extension portions, so that the support bars and the elastic connecting rings are connected more tightly and are not easy to move relatively. The extending parts are in transition connection with the supporting strips through fillets, and the two supporting strips are in transition connection through fillets.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the terms magnetic ring, elastic connection ring, adapter, shaft hole, chuck, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims (10)

1. The utility model provides a motor rotor structure, includes rotor shaft and magnetic ring, its characterized in that: the rotor comprises a rotor shaft and is characterized by further comprising an adapter (3), wherein a shaft hole (4) is formed in the adapter, the rotor shaft penetrates into the shaft hole and is fixed in the shaft hole, the adapter is arranged in an inner ring of the magnetic ring, and an elastic connecting ring (2) is arranged between the adapter and the magnetic ring and is fixedly connected with the adapter.

2. The rotor structure of an electric motor according to claim 1, wherein a plurality of first clamping portions are disposed on the outer circumferential surface of the elastic connection ring (2), a plurality of first clamping portions are correspondingly disposed on the inner circumference of the magnetic ring (1), the first clamping portions are tightly fitted and clamped in the first clamping portions, a plurality of second clamping portions are disposed on the inner circumferential surface of the elastic connection ring, a plurality of second clamping portions are correspondingly disposed on the outer circumferential surface of the adapter seat (3), and the first clamping portions are tightly fitted and clamped in the first clamping portions.

3. A rotor structure for an electric motor according to claim 2, characterized in that the first clamping portion of the elastic connection ring (2) comprises a plurality of clamping heads (5) which are arranged on the outer ring surface of the elastic connection ring and are evenly distributed along the two side edges, the first clamping portion of the magnetic ring (1) comprises a plurality of clamping grooves (6) which are arranged on the inner ring surface of the magnetic ring and are evenly distributed along the two side edges, and the clamping heads are embedded in the clamping grooves after the magnetic ring is connected with the elastic connection ring in a matching manner.

4. A rotor structure for an electric motor according to claim 2, wherein the first clamping portion of the elastic connection ring (2) comprises a plurality of clamping strips (7), the clamping strips are transversely arranged and uniformly spaced on the outer ring surface of the elastic connection ring, two ends of each clamping strip are respectively flush with two side surfaces of the elastic connection ring, the second clamping portion of the magnetic ring (1) comprises a plurality of elongated slots (8), the elongated slots are transversely arranged and uniformly spaced on the inner ring surface of the magnetic ring, and the clamping strips are embedded in the elongated slots after the magnetic ring is connected with the elastic connection ring in a matching manner.

5. A rotor structure of an electric motor according to claim 2, characterized in that the first clamping portion of the elastic connection ring (2) comprises first clamping edges (9) disposed along two side edges of the outer ring surface of the elastic connection ring, a plurality of first horizontal bars (10) are transversely disposed and uniformly spaced between the first clamping edges, the second clamping portion of the magnetic ring (1) comprises first ring grooves (11) disposed along two side edges of the inner ring surface of the magnetic ring, a plurality of first horizontal grooves (12) are transversely disposed between the ring grooves and uniformly spaced between the ring grooves, the clamping edges are embedded in the ring grooves after the magnetic ring is connected with the elastic connection ring in a matching manner, and the first horizontal bars are embedded in the first horizontal grooves.

6. A rotor structure for an electric machine, as claimed in any one of claims 1-5, characterized in that the second clamping head portion of the resilient connecting ring (2) comprises second clamping rims (13) arranged along both side edges of the inner ring surface of the resilient connecting ring, and a plurality of second transverse bars (14) arranged transversely between the second clamping rims and evenly spaced apart from each other.

7. A rotor structure of an electric motor according to claim 6, characterized in that said adapter (3) is a circular body, and said second engaging portion comprises a plurality of second transverse grooves (15) transversely formed on the outer circumferential surface of the adapter, and the adapter is inserted into the groove formed between the two second engaging edges (13) of the elastic connecting ring (2), and the second transverse grooves are connected with the second transverse strips (14) in a matching manner.

8. An electric motor rotor structure as claimed in any one of claims 1-5, characterized in that said adapter (3) comprises a fixed portion (16) and a plurality of support bars (17) radially connected to the outer circumferential surface of the fixed portion, the second clamping portion comprises a plurality of third transverse grooves (18) transversely arranged on the end surfaces of the support bars, the front ends of the support bars are supported in the grooves formed between the two second clamping edges (13) of the elastic connecting ring (2), and the third transverse grooves are connected with the second transverse bars (14) in a matching manner.

9. The rotor structure of an electric motor as claimed in claim 8, wherein the support bars (17) are extended to form extension portions (19) on both sides of the front end thereof, the end surfaces of the extension portions are tightly connected with the inner ring surface of the elastic connection ring, a spacing portion (20) is formed on the inner ring surface of the elastic connection ring between two adjacent support bar extension portions, the extension portions are connected with the support bars by fillet transition, and the two support bars are connected by fillet transition.

10. A rotor structure of an electric motor according to any one of claims 1-5, characterized in that a plurality of mounting slots (21) are uniformly arranged along the circumference on the side of the elastic connecting ring (2), and balancing pieces are embedded in the mounting slots.

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